(ffssi2): Use gpc_reg_operand predicate.

(Some maskir patterns): Likewise.
(ffsdi2): Likewise.

From-SVN: r9032

gcc/config/rs6000/rs6000.md

@@ -1040,8 +1040,8 @@
   [(set_attr "type" "compare")])
 
 (define_insn "ffssi2"
-  [(set (match_operand:SI 0 "register_operand" "=&r")
-	(ffs:SI (match_operand:SI 1 "register_operand" "r")))]
+  [(set (match_operand:SI 0 "gpc_reg_operand" "=&r")
+	(ffs:SI (match_operand:SI 1 "gpc_reg_operand" "r")))]
   ""
   "neg %0,%1\;and %0,%0,%1\;{cntlz|cntlzw} %0,%0\;{sfi|subfic} %0,%0,32"
   [(set_attr "length" "16")])
@@ -1764,7 +1764,7 @@
   "maskir %0,%3,%2")
 
 (define_insn ""
-  [(set (match_operand:SI 0 "register_operand" "=r")
+  [(set (match_operand:SI 0 "gpc_reg_operand" "=r")
 	(ior:SI (and:SI (not:SI (match_operand:SI 2 "gpc_reg_operand" "r"))
 			(match_operand:SI 1 "gpc_reg_operand" "0"))
 		(and:SI (match_operand:SI 3 "gpc_reg_operand" "r")
@@ -1813,7 +1813,7 @@
 		 (and:SI (match_operand:SI 3 "gpc_reg_operand" "r")
 			 (match_dup 2)))
 	 (const_int 0)))
-   (set (match_operand:SI 0 "register_operand" "=r")
+   (set (match_operand:SI 0 "gpc_reg_operand" "=r")
 	(ior:SI (and:SI (not:SI (match_dup 2)) (match_dup 1))
 		(and:SI (match_dup 3) (match_dup 2))))]
   "TARGET_POWER"
@@ -3559,8 +3559,8 @@
 ;; PowerPC64 DImode operations.
 
 (define_insn "ffsdi2"
-  [(set (match_operand:DI 0 "register_operand" "=&r")
-	(ffs:DI (match_operand:DI 1 "register_operand" "r")))]
+  [(set (match_operand:DI 0 "gpc_reg_operand" "=&r")
+	(ffs:DI (match_operand:DI 1 "gpc_reg_operand" "r")))]
   "TARGET_POWERPC64"
   "neg %0,%1\;and %0,%0,%1\;cntlzd %0,%0\;subfic %0,%0,64"
   [(set_attr "length" "16")])